A070026 - cp's OEIS frontend

A070026 Initial, all intermediate and final iterated sums of digits of n are primes.

n	a(n)
1	2
2	3
3	5
4	7
5	11
6	12
7	14
8	16
9	20
10	21
11	23
12	25
13	29
14	30
15	32
16	34
17	38
18	41
19	43
20	47
21	50
22	52
23	56
24	61
25	65
26	70
27	74
28	83
29	92
30	101
31	102
32	104
33	106
34	110
35	111
36	113
37	115
38	119
39	120
40	122
41	124
42	128
43	131
44	133
45	137
46	140
47	142
48	146
49	151
50	155
51	160
52	164
53	173
54	182
55	191
56	200
57	201
58	203
59	205
60	209
61	210
62	212
63	214
64	218

[2, 3, 5, 7, 11, 12, 14, 16, 20, 21, 23, 25, 29, 30, 32, 34, 38, 41, 43, 47, 50, 52, 56, 61, 65, 70, 74, 83, 92, 101, 102, 104, 106, 110, 111, 113, 115, 119, 120, 122, 124, 128, 131, 133, 137, 140, 142, 146, 151, 155, 160, 164, 173, 182, 191, 200, 201, 203, 205, 209, 210, 212, 214, 218]

cp's OEIS Frontend

A070026 Initial, all intermediate and final iterated sums of digits of n are primes.

Table of values

List of values

n	a(n)
1	2
2	3
3	5
4	7
5	11
6	12
7	14
8	16
9	20
10	21
11	23
12	25
13	29
14	30
15	32
16	34
17	38
18	41
19	43
20	47
21	50
22	52
23	56
24	61
25	65
26	70
27	74
28	83
29	92
30	101
31	102
32	104
33	106
34	110
35	111
36	113
37	115
38	119
39	120
40	122
41	124
42	128
43	131
44	133
45	137
46	140
47	142
48	146
49	151
50	155
51	160
52	164
53	173
54	182
55	191
56	200
57	201
58	203
59	205
60	209
61	210
62	212
63	214
64	218

n	a(n)
1	2
2	3
3	5
4	7
5	11
6	12
7	14
8	16
9	20
10	21
11	23
12	25
13	29
14	30
15	32
16	34
17	38
18	41
19	43
20	47
21	50
22	52
23	56
24	61
25	65
26	70
27	74
28	83
29	92
30	101
31	102
32	104
33	106
34	110
35	111
36	113
37	115
38	119
39	120
40	122
41	124
42	128
43	131
44	133
45	137
46	140
47	142
48	146
49	151
50	155
51	160
52	164
53	173
54	182
55	191
56	200
57	201
58	203
59	205
60	209
61	210
62	212
63	214
64	218

n	a(n)
1	2
2	3
3	5
4	7
5	11
6	12
7	14
8	16
9	20
10	21
11	23
12	25
13	29
14	30
15	32
16	34
17	38
18	41
19	43
20	47
21	50
22	52
23	56
24	61
25	65
26	70
27	74
28	83
29	92
30	101
31	102
32	104
33	106
34	110
35	111
36	113
37	115
38	119
39	120
40	122
41	124
42	128
43	131
44	133
45	137
46	140
47	142
48	146
49	151
50	155
51	160
52	164
53	173
54	182
55	191
56	200
57	201
58	203
59	205
60	209
61	210
62	212
63	214
64	218